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litespeed_wiki:config:keep_alive [2016/09/16 19:14]
Rob Holda
litespeed_wiki:config:keep_alive [2016/09/19 13:44]
Rob Holda
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 ====== Understanding "keep alive" settings ====== ====== Understanding "keep alive" settings ======
-LiteSpeed Web Server turns on "keep alive" ​by default. There is no "​yes/​no"​ or "​on/​off"​ option in LSWS configuration,​ however, you can turn it off or control it through the "Max Keep-Alive Requests""Smart Keep-Alive", and "Keep-Alive Timeout (secs)" ​settings (under the LSWS Admin Console -> Server -> Tuning -> Connection section).+LiteSpeed Web Server's default configuration ​turns "keep alive" ​on. There is no "​yes/​no"​ or "​on/​off"​ option in LiteSpeed Web Server'​s settings. However, you can turn it off or control it through the ''​Max Keep-Alive Requests''​''​Smart Keep-Alive''​, and ''​Keep-Alive Timeout (secs)'' ​settings (under the LSWS Admin Console -> Server -> Tuning -> Connection section).
  
 {{ :​litespeed_wiki:​config:​keep-alive.png?​nolink&​300 |}} {{ :​litespeed_wiki:​config:​keep-alive.png?​nolink&​300 |}}
  
-Please bear in mind that you don't need to enable ​"Smart Keep-Alive" ​to be able to use "​Keep-Alive"​. ​Actually, "Smart Keep-Alive" ​is designed to "turn off" Keep-Alive for some types of files, instead of "​turning it on". For example, it will "​enable"​ keep-alive for JavaScript, CSS, image file requests, and disable it for other type of files, such as HTML files. Since release ​5.1.8, ​it will only exclude HTML from keep-alive. If you would like to use keep-alive for everything, you must turn off "Smart Keep-Alive".+You don't need to enable ​''​Smart Keep-Alive'' ​to be able to use "​Keep-Alive"​. ​''​Smart Keep-Alive'' ​is designed to "turn off" Keep-Alive for some types of files, instead of "​turning it on". For example, it will "​enable"​ keep-alive for JavaScript, CSS, image file requests, and disable it for other type of files, such as HTML files. Since LSWS 5.1.8, ​''​Smart Keep-Alive'' ​will only disable ​keep-alive ​for HTML files. If you would like to use keep-alive for everything, you must turn off ''​Smart Keep-Alive''​.
  
 "​Keep-alive"​ is server level configuration and can not be controlled at virtual host level.  ​ "​Keep-alive"​ is server level configuration and can not be controlled at virtual host level.  ​
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 ==== Controlling "​Keep-Alive"​ ==== ==== Controlling "​Keep-Alive"​ ====
  
-Setting ​"Max Keep-Alive Requests" ​to "​0"​ will disable "​keep-alive"​. You should leave this as the default value if you have no special requirements,​ increasing it slightly as needed or even adjusting it to a large value, like "​100,​000",​ when you do a benchmark test.+Setting ​''​Max Keep-Alive Requests'' ​to "​0"​ will disable "​keep-alive"​. You should leave this as the default value if you have no special requirements,​ increasing it slightly as needed or even adjusting it to a large value, like "​100,​000",​ when you do a benchmark test.
  
-The default value for Keep-Alive Timeout (secs) is "​5"​. You don't need to adjust this either unless you have some special requirements.+The default value for ''​Keep-Alive Timeout (secs)'' ​is "​5"​. You don't need to adjust this either unless you have some special requirements.
  
-Sometimes you may not see a Keep-alive header for a particular URL. This does not mean that "​keep-alive"​ is off. To troubleshoot this you may turn off "Smart Keep-Alive" ​and increase the value of the "Max Keep-Alive Requests" ​setting. Sometimes a PHP external application "Soft Limit" may also limit "​keep-alive"​ connections. Increasing this "Soft Limit" may also fix this issue.+Sometimes you may not see a ''​Keep-alive'' ​header for a particular URL. This does not mean that "​keep-alive"​ is off. To troubleshoot this you may turn off ''​Smart Keep-Alive'' ​and increase the value of the ''​Max Keep-Alive Requests'' ​setting. Sometimes a PHP external application "Soft Limit" may also limit "​keep-alive"​ connections. Increasing this "Soft Limit" may also fix this issue.
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  • Last modified: 2016/09/19 13:44
  • by Rob Holda